Canal-lock gate



Patented Apr. 13, 1838.

m 0 TA. m G NW IL WL LM .A "U

Fn n LI-n LIVINGSTON, or wnrnnronn, New YonK.

cAnAn-Locn ear-E.

Specification of Letters Batent Ni'o. 687,.dated April 13, 1838.

To all "whom it may concern:

Be it known that I, FRANKLIN LIVING- s'roN, of the town of Waterford, inthe county of Saratoga and State of- New York, have invented anew anduseful improvement to prevent the gudgeons, steps, andcollars of paddleor valve gates, such as are usedin canal navigation for filling andemptying canal-locks, from wearing and also an improvement for openingand shutting the same by the horizontal application of the screw andlever combined, which is described asfollows, reference being had to theannexed drawings of the same, making part of this specification.

The nature of my improvement consists in the application of frictionboxes and collars to the gudgeons (orpivots, collars, and steps, ofpaddle gates). The improvement of opening and shutting the'same consistsinthe application of a screw and nut attached to a lever, to be appliedto gates standing perpendicular. a

To enable others skilled in the art of making lock gates to make andusemy improvement and invention I will proceed to describe theconstruction and operation of the ing at the same time, the sizeandshape of said friction boxes and collars to suit the gudgeons of thegates. made in any suitable form and thegudgeons or pivots onwhich itturns may be attached in such a manner as'would suit the constructorbest, and the gudgeons may be attached to any part of the wicket gate,or cast on the gate, and they may be made of any suitable kind of metaland so may the gates be made of metal (either cast or wrought iron, orwood: and iron combined).

I will describe a gate together with the gudgeons or pivots on whichitturnsmade of an entire piece of cast metal, the gudgeons cast on'thegate. The following isa description of one two feet square, the plate AFigure 1 should be about one inch and a quarterthick in a line with thegudgeon B. The vertical edges ofthe gate or plate should be from half tofive eighths of an The gates may be inch thick, and increased inthickness to- Ward the middle, so as to make thefront andback of theplate a littleconvex instead of flat. Thetop gudgeon should be threeinches long andthree and three fourths of an inch thick in diameter, inthe topof this gudgeon is a mortise G one inch and a quartensquare, andnearly three inches deep to admit of a wrought iron rod that is to turnthe gate, where the gudgeons join the gate it should be increasedgradually in :thickness to. the full: diameter of the gud- Qgeons, sothat there maybe no weak place in consequence of any jmetal, and on theside'of this gudgeon there must be a crease or groove cast or madein gitso as to receive aicorresponding tongue EF cast or made on the inside ofthe friction ibox E Figs. 2 and 5 that surrounds this igudgeonandtprotects it from wearing. The

Ebiottom gudgeon B Fig. 1 should be about Etwo inches thick where itjoinson to the gate land slanted: off to about one and a half {inches atthe lower end and two inches long. The collar F Figs. 3 and 5 in whichthe lupper gudgeon works should afford to it abearing of" about threeinches-it may be formed one half" in the metalTframe'that, surrounds thesluice or may be firmly fasltiened to it. Where there is no metal framethen this collar is a separate piece of casting i aboutv twelve orthirteen inches long, having a bearing of about three inches fastened:to ithe top off thesluice by means of bolts and jnuts or spikes, and inthis collar there is ;an inner collar, G Figs. a and 5 of correspondingcircle'to the inside of the collar F sudden offset in the: i

and ofadifferent kinds of metal. It must be made to suit and fitthe-circle in the collar F and at the sametime to correspond with thefriction box E (that protects the gudgeon from wearing) this frictionbox, or bush E is a circleQthe inner friction collar Gr Figs. 4-,; and 5ismadein two 'parteach a half circle with tongues I on each the collarGr is made in thesame shape and size in every particular as the one justde-- scribed so that when these two sections or semi-circles are put intheir places they form a. circle around the friction box or bush thatsurrounds the gudgeons of the gate. I prefer thus to make these twosections of the same size and shape on account of re 'quiring but onepattern for both, thereby avoiding any mistake should one break or beworn out, and it become necessary to replace it by another under water,and again when repairing the canal in the spring (as is usual) therewill be but one kind of collar to carry about by the workmen, by thismethod all confusion ormistake is avoided. The friction box E thatsurrounds the upper gudgeon (and protects it from wearing) may be madeof cast, or anyother metal, and must be about an inch thick of the samelength and a little larger in diameter so that it may be slipped off andon easily by means of the thumb and finger at pleasure under water andon the inside there must be cast 25 a tongue to correspond with thegroove in the gudgeon by which it is'made fast to itand kept fromturning, and when the gate is turned this box turns with the gudgeon andthe wearing thus takes place on the outside thereof and not on thegudgeon, and likewise the outer collar F is in a similar mannerprotected from wearing by the inner collar G.

I The step M Fig. 6 to receive a friction box Fig. 7 and bear up thegate and rod that is to govern the gate, should be cast of metal ofsuitable size and shape firmly fastened to the bottom of the sluice bybolts.

This step should notbe less than one and a half inches thick where itreceives the friction box the hole in the same being governed in sizeaccording to the size of the friction box and gudgeon that it is toreceive, twelve inches long and beveled off toward the back end one inchthick and three broad with two inch holes in it to secure it to the girtat the bot-tom of the sluiceand in said hole M Fig. 6 there must be anotch or groove '12 cast or made in the side thereof to receive acorresponding tongue 10 on the friction box Fig. 7 that enters or setsin to this step to prevent it from turning and wearing.

The friction box. Fig. 7 that sets into the above described step ismadeof cast iron, and has a flange K cast on it of about 2 inches broad, andall parts of it is about one half inch thick, this box has a bottom toit (thereby increasing its durability) and a tongue p cast or fastenedon the outside to correspond with the groove cast in the step, by whichit is held stationary, in the hole of the step, consequently the stepcannot Wear, and the flange to the box may be made larger or smaller asthe nature of the case may require; but the box. and the hole in thestep must always be guided in size according to the size ofthe lowergudgeon of the gate.

The friction box Fig. 8 (for preserving the lower gudgeon from wearing)is made a little larger than the gudgeon and the hole in the box must bea little ovaling on the front side of the box, so as to let the gatepitch a little forward to clear the collar above, that it may be takenout and another one put inits place with ease, and about one sixteenthof an inch deeper, also with a bottom so that the bottom of the gaterests on the flanges of this friction box and this box must be setintothe beforementioned friction box (that preserves the stepfrom'wearing) consequently must be of such size as to be inserted intothe before mentioned box, and the flanges mustcorrespond in'size to eachother so that the bearing and wearing will be equal, and, on the toppart of the flange (one each side) there must be ste'adying pins or'knobs 9 cast of about half inch high, so that by means of said pinswhen the gate is in its place the gudgeon will set in this friction boxand as the gate turns this box is made to turn on the friction box thatprotects the step from-wearing, consequently the friction or wearingcomes on the two friction boxes thereby both the lower gudgeon of thegate and the step is entirely protected from wearing. These wicket gatesvA Fig. 9 are turned by insetting vertical zontal arms P at right anglesto the same the ends of said arms being attached to a horizontal rod Qmoved by a horizontal screw R turning in a nut which thus turns all thegates together.

The boxes for horizontal gates will be made similar to those representedat Fig. 10, in which the inner box S on the gudgeon is made like box EFig. 2and the outer box T in which vsaid box S turns has a tongue on theoutside fitting into a corresponding groove. in the collar 9 fastened tothe frame of the main gate.

The invention claimed and desired to be secured by Letters Patentconsists,

1. In the construction and arrangement of the inner collar G and box orbushing E for I plied to the gudgeons of horizontal or vertitical Wicketgates by'the screw Working horical Wicket gates; as before described inzontally as before describedin Fig. 9, 3 Fig. 10. n i i 2. In theconstruction and arrangement of FRANKLIN LIVINGSTON 5 boxes forpreventing the Wear of the steps Witnesses:

and lower gudgeons as before described. WVM. P.v ELLIOT,

3. The mode of opening and shutting ver- W. BISHOP.

